Re[2]: Unable to boot - Stuck at "GRUB"

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Hello Neil,

Monday, January 6, 2003, 5:56:08 AM, you wrote:

NB> Around about 06/01/2003 11:29, Patrick typed ...
>> You can define device swaps in grub.conf with the map command. Check
>> info grub, the manpages etc. A quick Google gave e.g. this link:
>> https://listman.redhat.com/pipermail/valhalla-list/2002-June/003173.html

NB>    I'm not certain that that could help me;  my problem is essentially 
NB> that when booting from CD (install/rescue) grub 'sees' the devices in a 
NB> different sequence than when I boot 'normally', as the BIOS has then 
NB> forcibly reported 'EXT' (my ATA66 boot drive, IDE3) as the first drive - 
NB> I guess, the direct equivalent of the grub map command.

NB>    Unless I can get the map command to only happen in one instance: 
NB> either during boot, or after CD boot when run manually. IYSWIM.

If I'm following you correctly:
  # grub --device-map=/boot/grub/device.map
from a shell.  I'm not sure if you can specify device.map in the Grub
Boot shell or not.

NB>    How if the device.map used by grub?  *Is* it, even, or is it just 
NB> info. for the user?

I'm not sure of the technical details, but editing device.map and
re-installing grub to the MBR worked for me.  That was after I tried
to edit grub.conf and swap hd(0,0) with hd(1,0), which did not work,
but I didn't re-write grub to the MBR after that either (docs didn't
say I had to)...

I can only assume that Grub updated something in the MBR after the
installation of the IDE disk, and that's why modifying grub.conf
didn't work.

-- 
Best regards,
 Brian Curtis



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